Panasonic GX1 or E-PL2?

I'm aware of those things that you mentioned; as I have researched the GX1. Thing is, what appear as up-grades are not always as they seem to be. That's why I like to get real users into the picture. The better higher ISO capability of the Panny might be important, but the loss of color quality might be even more of a major loss to me. Thanks for your response.